Results 1 to 10 of about 38 (38)

On Beta Exponentiated Lomax-Exponential Distribution with applications

open access: yesScientific African, 2023
This study introduces a new Beta Exponentiated Lomax-Exponential Distribution (BELED) with special reference to its quantile function to enhance closed form solution of its parameters and make its proprietorial effect on data modeling quantifiable with ...
A.T. Sóyínká
doaj   +1 more source

Generating unfavourable VaR scenarios under Solvency II with patchwork copulas

open access: yesDependence Modeling, 2021
The central idea of the paper is to present a general simple patchwork construction principle for multivariate copulas that create unfavourable VaR (i.e. Value at Risk) scenarios while maintaining given marginal distributions.
Pfeifer Dietmar, Ragulina Olena
doaj   +1 more source

Copula modeling for discrete random vectors

open access: yesDependence Modeling, 2020
Copulas have now become ubiquitous statistical tools for describing, analysing and modelling dependence between random variables. Sklar’s theorem, “the fundamental theorem of copulas”, makes a clear distinction between the continuous case and the ...
Geenens Gery
doaj   +1 more source

Subsymmetry and asymmetry models for multiway square contingency tables with ordered categories

open access: yesOpen Mathematics, 2016
This paper suggests several models that describe the symmetry and asymmetry structure of each subdimension for the multiway square contingency table with ordered categories.
Aktaş Serpil
doaj   +1 more source

New copulas based on general partitions-of-unity and their applications to risk management (part II)

open access: yesDependence Modeling, 2017
We present a constructive and self-contained approach to data driven infinite partition-of-unity copulas that were recently introduced in the literature.
Pfeifer Dietmar   +2 more
doaj   +1 more source

New copulas based on general partitions-of-unity (part III) — the continuous case

open access: yesDependence Modeling, 2019
In this paper we discuss a natural extension of infinite discrete partition-of-unity copulas which were recently introduced in the literature to continuous partition of copulas with possible applications in risk management and other fields.
Pfeifer Dietmar   +3 more
doaj   +1 more source

On the use of external information in social network analysis

open access: yes, 2010
Attribute data, Clustering, Positional analysis, Scientific collaboration network, Two-mode network, 62H17, 62J05, 91C20,
VITALE, MARIA PROSPERINA   +4 more
core   +1 more source

Minimum phi-divergence estimators for loglinear models with linear constraints and multinomial sampling

open access: yes, 2008
Primary 62H15, Secondary 62H17, Loglinear models, Multinomial sampling, Maximum likelihood estimator, Minimum Phi-divergence estimator,
Pardo Llorente, Leandro   +3 more
core   +1 more source

On Christensen's conjecture

open access: yes
Primary 62H15, Secondary 62H17, Loglinear models, Multinomial sampling, Maximum likelihood estimator, Standardized residuals,
T. Nguyen, K. Gupta, L. Pardo
core   +1 more source

A New Family of BAN Estimators for Polytomous Logistic Regression Models based on ϕ- Divergence Measures

open access: yes
Multinomial sampling, Kullback–Leibler divergence measure, Minimum ϕ-divergence estimator, Polytomous regression model, Primary 62H15, Secondary 62H17,
T. Nguyen   +3 more
core   +1 more source

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